Detecting registration deviation accurately plays an important role in the automatic overprint control system.
准确检测套印偏差是印刷机自动套印系统中最为关键的技术;针对印刷色标图案的特点,提出了一种新的基于图像匹配的套印误差检测方法,通过相关匹配处理获取各单色色标的位置,并巧妙利用色标圆线的直径确定了系统的标称分辨率,进而计算出各色组问纵向和横向的套印误差;文中详细给出了算法原理和实验结果;相对于经典的边缘检测方法,图像匹配技术充分利用了色标图案的整体信息;实验结果表明,该方法对像素灰度的变化和系统噪声具有鲁棒性,检测精度高。
In color printing,detecting printing registration deviation by man is time-consuming and inefficient.
彩色印刷过程中,人工检测套印误差是一项费时且低效的工作。
The photoelectric detecting technology was usually adopted to detect printing registration deviation online in color printing press,but the detecting result had obvious error because of the different sensitivity of photoelectron head in detecting different color mark.
针对彩色印刷机在采用光电检测技术进行实时套印误差自动检测过程中由于光电头对不同颜色的检测灵敏度不一样而导致的明显的检测结果误差,在系统设计中引入了双边沿触发电路,从而准确获得了各色标中心点经过光电头的时刻。
Basic suite consists of tholeiite and alkali-basalt.
基性岩套由拉斑玄武岩-碱性玄武岩组成.
GEOCHEMISTRY AND TECTONIC BACKGROUND OF PHIOLITE SUITE IN NORTH QINLING-TONGBAI
北秦岭——桐柏蛇绿岩套的地球化学和构造背景
The casing was driven into the soft muds in the top.
套管被送入软岩粉顶。
Matching Technologies Has Formed for Special Lithology Formation Transformation.;
特殊岩性油藏油层改造配套工艺技术
After strong deformation it is directly hosted by amphibolitic mylonite.
这套英云闪长岩加脉岩（长玢岩）经强变形作用改造，形成排山楼金矿现有的含矿糜棱岩系。
The clastic rocks widespread in the Triassic Xikang Group in western Sichuan consist dominantly of turbiditic flysch formations.
三叠系西康群碎屑岩主体为一套浊积岩复理石建造。
Petrologically, new discovery includes a suite of the Late Permian-Early Triassic ophiolites in the southern part of the surveyed area and ophiolites in Duolie, Dagring Village.
岩石方面，在测区南部新发现了一套晚二叠世一早三叠世蛇绿岩。
Study of Karamaili Ophiolite Complex and Jiangbasitao Formaition Volcanic Rocks in East Junggar of Xinjiang
新疆东准噶尔卡拉麦里蛇绿岩及姜巴斯套组火山岩研究
Assessment of natural gas diffusion loss from multiple source rocks-an example from shallow gas source rocks in the northern Songliao Basin
多套源岩天然气扩散损失量评价——以松辽盆地北部浅层气源岩为例
The determination of above two rock layers proved that main growth layer of South China basement is composed of Proterozoic upper and lower greenstone suites.
上述两套岩层性质的确定．证明了元古宙上、下两套绿岩是组成华南基底的主要生长层。
The Research about the Factors Affecting Formation Rock and Casing by Well-Completion and Injection-Production Technique;
完井、注采工艺对地层岩石及套管影响因素研究
Mechanism study on casing failure of mudstone layers caused by waterflooding development
注水开发引起泥岩层套管损坏机理研究
Evaluation and Application of Induced Fracture in XMAC Casings of Igneous Reservoirs
火成岩储层XMAC套管井中压裂裂缝评价及应用
Study and Application on Fracturing Matching Technology for Igneous Rock Reservoir of Niudong Block
牛东区块火山岩油藏压裂配套技术研究与应用
Progress of the R&D of 2000m geological core drilling equipment
2000m地质岩心钻探成套装备研制工作进展
Casing load creep test under gypsum formation and its numerical simulation analysis
盐岩地层套管蠕变荷载试验及其数值分析
This formation is dominated by a set of sandstone-mudstone dark clastic rock series which belongs to marginal marine deposit at the end of the Gondwana Carboniferous-Permian glacier period.
该组主要为一套砂岩－泥岩的暗色碎屑岩系，属冈瓦纳石炭－二叠纪冰川末期的边缘海沉积。
Results It shows that lithology of turbidite is similar with that of wallrocks. Blocky bedding,parallel bedding, cross-bedding and convolute structure are better developed in this area.
结果 该套浊积岩岩性同围岩类似,块状层理、平行层理、交错层理和包卷构造较发育;